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68361403 = 1117365569
BaseRepresentation
bin1000001001100…
…01110010111011
311202122010012211
410010301302323
5120000031103
610441115551
71460030245
oct404616273
9152563184
1068361403
1135651a30
121aa88bb7
1311216a46
149117095
15600536d
hex4131cbb

68361403 has 8 divisors (see below), whose sum is σ = 78963120. Its totient is φ = 58490880.

The previous prime is 68361401. The next prime is 68361407. The reversal of 68361403 is 30416386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68361403 - 21 = 68361401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68361401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182598 + ... + 182971.

It is an arithmetic number, because the mean of its divisors is an integer number (9870390).

Almost surely, 268361403 is an apocalyptic number.

68361403 is a deficient number, since it is larger than the sum of its proper divisors (10601717).

68361403 is a wasteful number, since it uses less digits than its factorization.

68361403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365597.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 68361403 is about 8268.0954880795. The cubic root of 68361403 is about 408.8873321454.

Adding to 68361403 its reverse (30416386), we get a palindrome (98777789).

The spelling of 68361403 in words is "sixty-eight million, three hundred sixty-one thousand, four hundred three".

Divisors: 1 11 17 187 365569 4021259 6214673 68361403